干旱区生态环境知识资源中心(Arid): 塔里木沙漠公路防护林土壤微生物活性分异特征

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	塔里木沙漠公路防护林土壤微生物活性分异特征
其他题名	Variation characteristics of soil microbial activities in the Tarim Desert Highway shelter forests, Xinjiang of Northwast China
	靳正忠; 雷加强; 李生宇; 徐新文
来源期刊	应用生态学报
ISSN	1001-9332
出版年	2013
卷号	24 期号:9 页码:2464-2470
中文摘要	利用Biolog法、熏蒸提取和比色滴定的方法,测定了土壤碳源代谢强度、生物量和酶活性,分析了塔里木沙漠公路防护林土壤微生物活性的分异特征.结果表明: 随着防护林定植年限增加,土壤微生物代谢活性(AWCD)和多样性指数明显增加,但不同土层间无明显差异;不同年限林地间过氧化氢酶差异极显著,纤维素酶和蔗糖酶差异显著;随着防护林定植年限增加,土壤微生物生物量增大,不同年限林地间微生物生物量碳和氮的差异极显著和显著,而微生物生物量磷无显著差异;土壤微生物的AWCD值与速效养分显著正相关,但与容重和水分的相关性不大.在现有的管理制度和气候条件下,随定植年限增加,塔里木沙漠公路防护林土壤代谢活性逐渐提高.
英文摘要	By the methods of Biolog, fumigation extraction, and colorimetric titration, this paper determined the soil carbon sources metabolic intensities, microbial biomass, and enzyme activities in the Tarim Desert Highway shelter-forests with different plantation times, and analyzed the variation characteristics of soil microbial activities in these shelter forests. With the increasing planting years of the shelter forests, the soil microbial metabolic activities (AWCD) and microbial diversity indices enhanced obviously, but the AWCD values in different soil layers had no significant differences. The soil catalase activity among the forests had no significant difference, but the soil cellulase and sucrase activities varied significantly. The soil microbial biomass carbon and nitrogen increased with the increasing planting years of the shelter forests, having a significant difference among the forests, but the microbial biomass phosphorus had no significant difference. The AWCD values had significant correlations with soil available nutrient contents, but less correlations with soil bulk density and moisture content. It was suggested that under the present management patterns and climate conditions, the soil metabolic activities in the Tarim Desert Highway shelter forests would be improved continuously with the increasing planting years of the forests.
中文关键词	塔里木沙漠公路防护林 ; 土壤微生物 ; 土壤微生物代谢活性 ; 微生物量 ; 酶活性
英文关键词	Tarim Desert Highway shelter forest soil microbe soil microbial metabolic activities microbial biomass enzyme activity
语种	中文
国家	中国
收录类别	CSCD
WOS类目	MICROBIOLOGY
WOS研究方向	Microbiology
CSCD记录号	CSCD:4945099
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/230413
作者单位	中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	靳正忠,雷加强,李生宇,等. 塔里木沙漠公路防护林土壤微生物活性分异特征[J]. 中国科学院新疆生态与地理研究所,2013,24(9):2464-2470.
APA	靳正忠,雷加强,李生宇,&徐新文.(2013).塔里木沙漠公路防护林土壤微生物活性分异特征.应用生态学报,24(9),2464-2470.
MLA	靳正忠,et al."塔里木沙漠公路防护林土壤微生物活性分异特征".应用生态学报 24.9(2013):2464-2470.